Citazione Stile APA (7a Edizione)
Covington, M. V. (1992). Making the grade: A self-worth perspective on motivation and school reform. Cambridge University Press.
Citazione stile Chigago Style (17a edizione)
Covington, Martin V. Making the Grade: A Self-worth Perspective on Motivation and School Reform. Cambridge ; New York: Cambridge University Press, 1992.
Citatione MLA (9a ed.)
Covington, Martin V. Making the Grade: A Self-worth Perspective on Motivation and School Reform. Cambridge University Press, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.